Moderns, sleek 4 port USB charger with support for QUICK CHARGE technology providing a regulated 3.6V to 12V 2.4 Amp power supply to one of the USB ports. QUICK CHARGE v2 technology allows certain devices to negotiate with the charging block to optimize the charging voltage and amperage reducing the charge time for such support device from 6 hours to less than 60 minutes. Purchase the EU 240V adapter (sold separately, see part FE-ADT-313) to allow this charging block to be used in both North American, Europe, and parts of Asia.